105 lines
2.6 KiB
C
105 lines
2.6 KiB
C
/*
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* Copyright 2013, The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifdef __ARM_ARCH_7A__
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#include <portability.h>
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#include <fenv.h>
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#include <fenv_portable.h>
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int WRAP(fegetenv)(fenv_t* __envp) {
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fenv_t _fpscr;
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__asm__ __volatile__("vmrs %0,fpscr" : "=r" (_fpscr));
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*__envp = _fpscr;
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return 0;
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}
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int WRAP(fesetenv)(const fenv_t* __envp) {
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fenv_t _fpscr = *__envp;
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__asm__ __volatile__("vmsr fpscr,%0" : :"ri" (_fpscr));
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return 0;
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}
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int WRAP(feclearexcept)(int __excepts) {
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fexcept_t __fpscr;
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WRAP(fegetenv)(&__fpscr);
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__fpscr &= ~__excepts;
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WRAP(fesetenv)(&__fpscr);
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return 0;
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}
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int WRAP(fegetexceptflag)(fexcept_t* __flagp, int __excepts) {
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fexcept_t __fpscr;
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WRAP(fegetenv)(&__fpscr);
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*__flagp = __fpscr & __excepts;
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return 0;
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}
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int WRAP(fesetexceptflag)(const fexcept_t* __flagp, int __excepts) {
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fexcept_t __fpscr;
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WRAP(fegetenv)(&__fpscr);
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__fpscr &= ~__excepts;
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__fpscr |= *__flagp & __excepts;
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WRAP(fesetenv)(&__fpscr);
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return 0;
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}
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int WRAP(feraiseexcept)(int __excepts) {
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fexcept_t __ex = __excepts;
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WRAP(fesetexceptflag)(&__ex, __excepts);
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return 0;
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}
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int WRAP(fetestexcept)(int __excepts) {
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fexcept_t __fpscr;
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WRAP(fegetenv)(&__fpscr);
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return (__fpscr & __excepts);
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}
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int WRAP(fegetround)(void) {
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fenv_t _fpscr;
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WRAP(fegetenv)(&_fpscr);
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return ((_fpscr >> _FPSCR_RMODE_SHIFT) & 0x3);
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}
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int WRAP(fesetround)(int __round) {
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fenv_t _fpscr;
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WRAP(fegetenv)(&_fpscr);
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_fpscr &= ~(0x3 << _FPSCR_RMODE_SHIFT);
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_fpscr |= (__round << _FPSCR_RMODE_SHIFT);
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WRAP(fesetenv)(&_fpscr);
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return 0;
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}
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int WRAP(feholdexcept)(fenv_t* __envp) {
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fenv_t __env;
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WRAP(fegetenv)(&__env);
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*__envp = __env;
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__env &= ~(FE_ALL_EXCEPT | _FPSCR_ENABLE_MASK);
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WRAP(fesetenv)(&__env);
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return 0;
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}
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int WRAP(feupdateenv)(const fenv_t* __envp) {
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fexcept_t __fpscr;
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WRAP(fegetenv)(&__fpscr);
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WRAP(fesetenv)(__envp);
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WRAP(feraiseexcept)(__fpscr & FE_ALL_EXCEPT);
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return 0;
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}
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#endif /* __ARM_ARCH_7A__ */
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